On Tue, 8 Mar 2022 17:09:15 +0900, Shin'ichiro Kawasaki wrote:
> Commit 9d497e2941c3 ("block: don't protect submit_bio_checks by
> q_usage_counter") moved blk_mq_attempt_bio_merge and rq_qos_throttle
> calls out of q_usage_counter protection. However, these functions require
> q_usage_counter protection. The blk_mq_attempt_bio_merge call without
> the protection resulted in blktests block/005 failure with KASAN null-
> ptr-deref or use-after-free at bio merge. The rq_qos_throttle call
> without the protection caused kernel hang at qos throttle.
>
> [...]
Applied, thanks!
[1/1] block: fix blk_mq_attempt_bio_merge and rq_qos_throttle protection
commit: 0a5aa8d161d19a1b12fd25b434b32f7c885c73bb
Best regards,
--
Jens Axboe
